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Windows 上的 MSSQL: 哈希桶中行链的平均长度

Microsoft.SQLServer.Windows.MonitorType.DBFilegroupFx.HashIndexAvgChainLength (UnitMonitorType)

此监视器类型检查 Windows 上的哈希桶中行链的平均长度。

Element properties:

RunAsMicrosoft.SQLServer.Core.RunAs.Monitoring
AccessibilityInternal
Support Monitor RecalculateFalse

Member Modules:

ID Module Type TypeId RunAs 
DS DataSource Microsoft.SQLServer.Windows.DataSource.HashIndexAvgChainLength Default
BagFilter ConditionDetection Microsoft.SQLServer.Windows.ConditionDetection.HashIndexDataMapper Default
HealthState ConditionDetection System.ExpressionFilter Default
WarningState ConditionDetection System.ExpressionFilter Default

Overrideable Parameters:

IDParameterTypeSelectorDisplay NameDescription
IntervalSecondsint$Config/IntervalSeconds$间隔(秒)运行工作流的重复间隔时间(秒)。
SyncTimestring$Config/SyncTime$同步时间使用 24 小时格式指定的同步时间。可以忽略。
SqlExecTimeoutSecondsint$Config/SqlExecTimeoutSeconds$
SqlTimeoutSecondsint$Config/SqlTimeoutSeconds$数据库连接超时(秒)如果在指定期间无法访问数据库，工作流将失败并注册一个事件。
TimeoutSecondsint$Config/TimeoutSeconds$超时(秒)指定工作流在关闭之前允许运行的时间，并标记为失败。
EmptyBucketPercentThresholdstring$Config/EmptyBucketPercentThreshold$空桶百分比阈值空桶百分比阈值，表示哈希索引中的空桶数。
AvgChainLengthThresholdstring$Config/AvgChainLengthThreshold$平均链长度阈值平均链长度阈值，表示哈希桶中行链的平均长度。
ErrorTopLinesstring$Config/ErrorTopLines$显示索引计数根据最佳做法未配置索引的显示计数。

Source Code:

<UnitMonitorType ID="Microsoft.SQLServer.Windows.MonitorType.DBFilegroupFx.HashIndexAvgChainLength" Accessibility="Internal" RunAs="SqlCoreLib!Microsoft.SQLServer.Core.RunAs.Monitoring">

  <MonitorTypeStates>

    <MonitorTypeState ID="Health"/>

    <MonitorTypeState ID="Warning"/>

  </MonitorTypeStates>

  <Configuration>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="MachineName" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="NetbiosComputerName" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="InstanceName" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ConnectionString" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="InstanceVersion" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="InstanceEdition" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="MonitoringType" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="DatabaseName" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="IntervalSeconds" type="xsd:int"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SyncTime" type="xsd:string"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SqlExecTimeoutSeconds" type="xsd:int"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="SqlTimeoutSeconds" type="xsd:int"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="TimeoutSeconds" type="xsd:int"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="EmptyBucketPercentThreshold" type="xsd:integer"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="AvgChainLengthThreshold" type="xsd:integer"/>

    <xsd:element xmlns:xsd="http://www.w3.org/2001/XMLSchema" name="ErrorTopLines" type="xsd:integer"/>

  </Configuration>

  <OverrideableParameters>

    <OverrideableParameter ID="IntervalSeconds" ParameterType="int" Selector="$Config/IntervalSeconds$"/>

    <OverrideableParameter ID="SyncTime" ParameterType="string" Selector="$Config/SyncTime$"/>

    <OverrideableParameter ID="SqlExecTimeoutSeconds" ParameterType="int" Selector="$Config/SqlExecTimeoutSeconds$"/>

    <OverrideableParameter ID="SqlTimeoutSeconds" ParameterType="int" Selector="$Config/SqlTimeoutSeconds$"/>

    <OverrideableParameter ID="TimeoutSeconds" ParameterType="int" Selector="$Config/TimeoutSeconds$"/>

    <OverrideableParameter ID="EmptyBucketPercentThreshold" ParameterType="string" Selector="$Config/EmptyBucketPercentThreshold$"/>

    <OverrideableParameter ID="AvgChainLengthThreshold" ParameterType="string" Selector="$Config/AvgChainLengthThreshold$"/>

    <OverrideableParameter ID="ErrorTopLines" ParameterType="string" Selector="$Config/ErrorTopLines$"/>

  </OverrideableParameters>

  <MonitorImplementation>

    <MemberModules>

      <DataSource TypeID="Microsoft.SQLServer.Windows.DataSource.HashIndexAvgChainLength" ID="DS">

        <MachineName>$Config/MachineName$</MachineName>

        <NetbiosComputerName>$Config/NetbiosComputerName$</NetbiosComputerName>

        <InstanceName>$Config/InstanceName$</InstanceName>

        <ConnectionString>$Config/ConnectionString$</ConnectionString>

        <InstanceVersion>$Config/InstanceVersion$</InstanceVersion>

        <InstanceEdition>$Config/InstanceEdition$</InstanceEdition>

        <MonitoringType>$Config/MonitoringType$</MonitoringType>

        <SqlExecTimeoutSeconds>$Config/SqlExecTimeoutSeconds$</SqlExecTimeoutSeconds>

        <SqlTimeoutSeconds>$Config/SqlTimeoutSeconds$</SqlTimeoutSeconds>

        <TimeoutSeconds>$Config/TimeoutSeconds$</TimeoutSeconds>

        <IntervalSeconds>$Config/IntervalSeconds$</IntervalSeconds>

        <SyncTime>$Config/SyncTime$</SyncTime>

        <EmptyBucketPercentThreshold>$Config/EmptyBucketPercentThreshold$</EmptyBucketPercentThreshold>

        <AvgChainLengthThreshold>$Config/AvgChainLengthThreshold$</AvgChainLengthThreshold>

        <ErrorTopLines>$Config/ErrorTopLines$</ErrorTopLines>

      </DataSource>

      <ConditionDetection ID="BagFilter" TypeID="Microsoft.SQLServer.Windows.ConditionDetection.HashIndexDataMapper">

        <DatabaseName>$Config/DatabaseName$</DatabaseName>

        <Publisher>SQLMonitoringWindows</Publisher>

        <ManagementGroupName>$Target/ManagementGroup/Name$</ManagementGroupName>

      </ConditionDetection>

      <ConditionDetection ID="HealthState" TypeID="System!System.ExpressionFilter">

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Property[@Name='Status']</XPathQuery>

            </ValueExpression>

            <Operator>Equal</Operator>

            <ValueExpression>

              <Value Type="String">Health</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </ConditionDetection>

      <ConditionDetection ID="WarningState" TypeID="System!System.ExpressionFilter">

        <Expression>

          <SimpleExpression>

            <ValueExpression>

              <XPathQuery Type="String">Property[@Name='Status']</XPathQuery>

            </ValueExpression>

            <Operator>NotEqual</Operator>

            <ValueExpression>

              <Value Type="String">Health</Value>

            </ValueExpression>

          </SimpleExpression>

        </Expression>

      </ConditionDetection>

    </MemberModules>

    <RegularDetections>

      <RegularDetection MonitorTypeStateID="Health">

        <Node ID="HealthState">

          <Node ID="BagFilter">

            <Node ID="DS"/>

          </Node>

        </Node>

      </RegularDetection>

      <RegularDetection MonitorTypeStateID="Warning">

        <Node ID="WarningState">

          <Node ID="BagFilter">

            <Node ID="DS"/>

          </Node>

        </Node>

      </RegularDetection>

    </RegularDetections>

  </MonitorImplementation>

</UnitMonitorType>